U.S. federal trademark · Serial No. 75883405
INDUSTRIAL COAL-FIRED FURNACES, INDUSTRIAL OIL-FIRED FURNACES, INDUSTRIAL GAS-FIRED FURNACES, FLUIDIZED BED REACTORS, HEAT EXCHANGERS USED IN METALLURGICAL AND COMBUSTION PROCESSES AND CLEANERS OF GASES FORMED IN METALLURGICAL AND COMBUSTION PROCESSES, AND INDUSTRIAL AND MUNICIPAL WASTE-FIRED FURNACES
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